A three dimensional multigrid model for fully nonlinear water waves

被引：58
|
作者：
Li, B
Fleming, CA
机构：
[1] Sir William Halcrow and Ptnrs. Ltd., Swindon, Wiltshire, SN4 0QD, Burderop Park
来源：
COASTAL ENGINEERING | 1997年 / 30卷 / 3-4期
关键词：
three dimension; multigrid; nonlinear; waves; model;
D O I：
10.1016/S0378-3839(96)00046-4
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this paper a three dimensional multigrid model is developed for the linear and fully nonlinear water wave propagation. The Laplace equation is transformed from an irregular calculation domain to a regular one and the boundary conditions on water surface and sea bottom can be implemented precisely. The multigrid method is used to solve the governing equation and the requirement of the computer storage is very small. The difference in computer time for running the linear model and the fully nonlinear model is not significant. The present model is valid over the complete range of water depths. For fully nonlinear water wave problems the present model is particularly efficient. The model is used to investigate the validity of the mild-slope equation for the case of strong wave focusing behind an elliptical shoal and also applied to Whalin's experiment. Simulation of wave breaking is not included in the present model.
引用
收藏
页码：235 / 258
页数：24
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